At the blastocyst stage during mammalian embryonic development, the specification of trophectoderm requires ________; whereas in inner cell mass _________activation is essential.

TLS Online TPP Program

#Question id: 9614

#XL - R Botany

Some molecular data place the giant panda in the bear family (Ursidae) but place the lesser panda in the raccoon family (Procyonidae). Consequently, the morphological similarities of these two species are probably due to

TLS Online TPP Program

#Question id: 2192

#XL - S Microbiology

Site-directed cross-linking is a technique that gives insight into what property of integral membrane proteins?

TLS Online TPP Program

#Question id: 1722

#XL - Q Biochemistry

The spleen is largely involved with the response to antigens which are in the:

TLS Online TPP Program

#Question id: 5740

#XL - S Microbiology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as

TLS Online TPP Program

#Question id: 3466

#XL - T Zoology

Animal preference of polygyny mating systems because of